{ "openapi": "3.1.0", "info": { "title": "Professional engineers register, ACT query API", "version": "2026-10-03", "summary": "Filter, page and aggregate Professional engineers register, ACT from Access Canberra, City and Environment Directorate.", "description": "The query API returns only the rows you ask for, as JSON, NDJSON or CSV, from the same typed rows as the files. It needs no key. The API allows 60 requests in 10 seconds from one address. Above that it answers 429 for 10 seconds with a `Retry-After` header, a `RateLimit-Policy` header and a JSON body that gives the limit. Every API answer carries the same `RateLimit-Policy`. A client should wait the `Retry-After` seconds, or read the files, which have no limit. Every JSON answer carries the version, licence and attribution. CSV and NDJSON answers carry them in response headers. Access Canberra, City and Environment Directorate has not endorsed this site. The whole site is described in https://publicdata.au/openapi.json.", "license": { "name": "CC BY 4.0", "url": "https://creativecommons.org/licenses/by/4.0/" } }, "servers": [ { "url": "https://publicdata.au" } ], "externalDocs": { "url": "https://publicdata.au/d/act-engineers-register/#query" }, "tags": [ { "name": "query" } ], "paths": { "/api/v1/datasets/act-engineers-register/rows": { "get": { "tags": [ "query" ], "summary": "Query Professional engineers register, ACT", "operationId": "queryRows_act_engineers_register", "description": "Rows of Professional engineers register, ACT in the newest loaded version, filtered and paged. Each filter is `field=operator.value` in the query string, and every filter must match. A number or date field compares as a number or date, and a text field compares as text. Values are case-sensitive except with `ilike`. Prefix `not.` to negate a filter, as `not.eq.value`. Operators: `eq.value`, `neq.value`, `gt.value`, `gte.value`, `lt.value`, `lte.value`, `like.*text*`, `ilike.*text*`, `in.(a,b,c)`, `is.null`.", "parameters": [ { "name": "identifier", "in": "query", "schema": { "type": "string" }, "description": "string." }, { "name": "name", "in": "query", "schema": { "type": "string" }, "description": "string." }, { "name": "period_start", "in": "query", "schema": { "type": "string" }, "description": "date. From 2025-03-05 to 2026-10-01." }, { "name": "period_end", "in": "query", "schema": { "type": "string" }, "description": "date. From 2028-03-05 to 2032-01-22." }, { "name": "status", "in": "query", "schema": { "type": "string" }, "description": "string. Values: Active.", "examples": [ "eq.Active" ] }, { "name": "licence_class", "in": "query", "schema": { "type": "string" }, "description": "string. Values: Civil, Civil;Mechanical, Civil;Structural, Electrical, Fire Safety, Mechanical, Mechanical;Electrical, Mechanical;Fire Safety, Mechanical;Fire Safety;Electrical, Structural, Structural;Mechanical.", "examples": [ "eq.Structural;Mechanical" ] }, { "name": "licence_condition", "in": "query", "schema": { "type": "string" }, "description": "string. Values: Able to work in the building and construction industry, Conditioned on to “only work in the building and construction industry on BCA class 2, 3 or 9C buildings, Not able to provide professional engineering services to or for the building and construction industry, Not able to provide professional engineering services to or for the building and construction industry in electrical engineering., Not able to work in building and construction industry., Not able to work in the Building and Construction Industry, Not able to work in the Building and Construction Industry., Not able to work in the building and construction industry, Not able to work in the building and construction industry., Only for work in the building and construction industry on BCA classes 2, 3 and 9c buildings, Only valid for the building and construction industry, Only valid for the building and construction industry on BCA classes 2, 3, 9c buildings, Only valid for work in the building and construction industry on BCA class 2, 3 or 9c buildings, Only valid for work relating to Information Technology & Telecommunications, Only work in the building and construction industry on BCA class 2 buildings, Only work in the building and construction industry on BCA class 2, 3 9c buildings, Only work in the building and construction industry on BCA class 2, 3 or 9C buildings, Only work in the building and construction industry on BCA class 2, 3 or 9C buildings., Valid for work performed as an employee only. Not able to contract, only work in the building and construction industry on BCA class 2, 3 or 9C buildings.", "examples": [ "eq.only work in the building and construction industry on BCA class 2, 3 or 9C buildings" ] }, { "name": "verification_status", "in": "query", "schema": { "type": "string" }, "description": "string. Values: Authorized.", "examples": [ "eq.Authorized" ] }, { "name": "select", "in": "query", "schema": { "type": "string" }, "description": "Fields to return, comma-separated. Every field when absent." }, { "name": "order", "in": "query", "schema": { "type": "string" }, "description": "`field.asc` or `field.desc`, comma-separated. The publisher's row order when absent." }, { "name": "limit", "in": "query", "schema": { "type": "integer", "minimum": 1, "maximum": 10000, "default": 100 }, "description": "Rows per page, 1 to 10,000. 100 when absent." }, { "name": "offset", "in": "query", "schema": { "type": "integer", "minimum": 0, "default": 0 }, "description": "Rows to skip. The `next` URL in each answer sets it for you." }, { "name": "format", "in": "query", "schema": { "type": "string", "enum": [ "json", "ndjson", "csv" ], "default": "json" }, "description": "`json`, `ndjson` or `csv`. JSON carries the provenance header, and the others carry it in response headers." } ], "responses": { "200": { "description": "Rows with the version, licence and attribution. `next` is the URL of the following page, or null." }, "400": { "description": "The query names a field the dataset does not have, or a value of the wrong type." }, "404": { "description": "The dataset or version is not loaded for queries." }, "429": { "description": "More than 60 requests in 10 seconds from one address. Blocked for 10 seconds. Wait `Retry-After` seconds.", "headers": { "Retry-After": { "schema": { "type": "integer" }, "description": "Seconds until the block lifts." }, "RateLimit-Policy": { "schema": { "type": "string" }, "description": "The limit, as \"fair-use\";q=60;w=10." } }, "content": { "application/json": { "schema": { "type": "object", "properties": { "error": { "type": "string" }, "status": { "type": "integer", "const": 429 }, "limit": { "type": "integer" }, "window_seconds": { "type": "integer" }, "block_seconds": { "type": "integer" }, "docs": { "type": "string", "format": "uri" }, "files": { "type": "string" } } } } } } } } }, "/api/v1/datasets/act-engineers-register/versions/{version}/rows": { "get": { "tags": [ "query" ], "summary": "Query Professional engineers register, ACT", "operationId": "queryRows_act_engineers_register_version", "description": "Rows of Professional engineers register, ACT in one dated version, filtered and paged. Each filter is `field=operator.value` in the query string, and every filter must match. A number or date field compares as a number or date, and a text field compares as text. Values are case-sensitive except with `ilike`. Prefix `not.` to negate a filter, as `not.eq.value`. Operators: `eq.value`, `neq.value`, `gt.value`, `gte.value`, `lt.value`, `lte.value`, `like.*text*`, `ilike.*text*`, `in.(a,b,c)`, `is.null`.", "parameters": [ { "name": "version", "in": "path", "required": true, "schema": { "type": "string", "format": "date" }, "description": "A dated version loaded for queries, from the versions path. Answers for a dated version never change." }, { "name": "identifier", "in": "query", "schema": { "type": "string" }, "description": "string." }, { "name": "name", "in": "query", "schema": { "type": "string" }, "description": "string." }, { "name": "period_start", "in": "query", "schema": { "type": "string" }, "description": "date. From 2025-03-05 to 2026-10-01." }, { "name": "period_end", "in": "query", "schema": { "type": "string" }, "description": "date. From 2028-03-05 to 2032-01-22." }, { "name": "status", "in": "query", "schema": { "type": "string" }, "description": "string. Values: Active.", "examples": [ "eq.Active" ] }, { "name": "licence_class", "in": "query", "schema": { "type": "string" }, "description": "string. Values: Civil, Civil;Mechanical, Civil;Structural, Electrical, Fire Safety, Mechanical, Mechanical;Electrical, Mechanical;Fire Safety, Mechanical;Fire Safety;Electrical, Structural, Structural;Mechanical.", "examples": [ "eq.Structural;Mechanical" ] }, { "name": "licence_condition", "in": "query", "schema": { "type": "string" }, "description": "string. Values: Able to work in the building and construction industry, Conditioned on to “only work in the building and construction industry on BCA class 2, 3 or 9C buildings, Not able to provide professional engineering services to or for the building and construction industry, Not able to provide professional engineering services to or for the building and construction industry in electrical engineering., Not able to work in building and construction industry., Not able to work in the Building and Construction Industry, Not able to work in the Building and Construction Industry., Not able to work in the building and construction industry, Not able to work in the building and construction industry., Only for work in the building and construction industry on BCA classes 2, 3 and 9c buildings, Only valid for the building and construction industry, Only valid for the building and construction industry on BCA classes 2, 3, 9c buildings, Only valid for work in the building and construction industry on BCA class 2, 3 or 9c buildings, Only valid for work relating to Information Technology & Telecommunications, Only work in the building and construction industry on BCA class 2 buildings, Only work in the building and construction industry on BCA class 2, 3 9c buildings, Only work in the building and construction industry on BCA class 2, 3 or 9C buildings, Only work in the building and construction industry on BCA class 2, 3 or 9C buildings., Valid for work performed as an employee only. Not able to contract, only work in the building and construction industry on BCA class 2, 3 or 9C buildings.", "examples": [ "eq.only work in the building and construction industry on BCA class 2, 3 or 9C buildings" ] }, { "name": "verification_status", "in": "query", "schema": { "type": "string" }, "description": "string. Values: Authorized.", "examples": [ "eq.Authorized" ] }, { "name": "select", "in": "query", "schema": { "type": "string" }, "description": "Fields to return, comma-separated. Every field when absent." }, { "name": "order", "in": "query", "schema": { "type": "string" }, "description": "`field.asc` or `field.desc`, comma-separated. The publisher's row order when absent." }, { "name": "limit", "in": "query", "schema": { "type": "integer", "minimum": 1, "maximum": 10000, "default": 100 }, "description": "Rows per page, 1 to 10,000. 100 when absent." }, { "name": "offset", "in": "query", "schema": { "type": "integer", "minimum": 0, "default": 0 }, "description": "Rows to skip. The `next` URL in each answer sets it for you." }, { "name": "format", "in": "query", "schema": { "type": "string", "enum": [ "json", "ndjson", "csv" ], "default": "json" }, "description": "`json`, `ndjson` or `csv`. JSON carries the provenance header, and the others carry it in response headers." } ], "responses": { "200": { "description": "Rows with the version, licence and attribution. `next` is the URL of the following page, or null." }, "400": { "description": "The query names a field the dataset does not have, or a value of the wrong type." }, "404": { "description": "The dataset or version is not loaded for queries." }, "429": { "description": "More than 60 requests in 10 seconds from one address. Blocked for 10 seconds. Wait `Retry-After` seconds.", "headers": { "Retry-After": { "schema": { "type": "integer" }, "description": "Seconds until the block lifts." }, "RateLimit-Policy": { "schema": { "type": "string" }, "description": "The limit, as \"fair-use\";q=60;w=10." } }, "content": { "application/json": { "schema": { "type": "object", "properties": { "error": { "type": "string" }, "status": { "type": "integer", "const": 429 }, "limit": { "type": "integer" }, "window_seconds": { "type": "integer" }, "block_seconds": { "type": "integer" }, "docs": { "type": "string", "format": "uri" }, "files": { "type": "string" } } } } } } } } }, "/api/v1/datasets/{slug}/aggregate": { "get": { "tags": [ "query" ], "summary": "Counts, sums, averages, minimums and maximums by group", "operationId": "aggregate", "description": "Groups and totals of any dataset in the newest loaded version. Filters work as they do on rows. Each filter is `field=operator.value` in the query string, and every filter must match. A number or date field compares as a number or date, and a text field compares as text. Values are case-sensitive except with `ilike`. Prefix `not.` to negate a filter, as `not.eq.value`. Operators: `eq.value`, `neq.value`, `gt.value`, `gte.value`, `lt.value`, `lte.value`, `like.*text*`, `ilike.*text*`, `in.(a,b,c)`, `is.null`.", "parameters": [ { "name": "slug", "in": "path", "required": true, "schema": { "type": "string", "enum": [ "act-engineers-register" ] }, "description": "The dataset's slug, as in its page URL `/d//`." }, { "name": "group", "in": "query", "schema": { "type": "string" }, "description": "On `aggregate`, fields to group by, comma-separated." }, { "name": "metric", "in": "query", "schema": { "type": "string", "default": "count" }, "description": "On `aggregate`, `count`, `sum.field`, `avg.field`, `min.field` or `max.field`, comma-separated. `count` when absent." }, { "name": "identifier", "in": "query", "schema": { "type": "string" }, "description": "string." }, { "name": "name", "in": "query", "schema": { "type": "string" }, "description": "string." }, { "name": "period_start", "in": "query", "schema": { "type": "string" }, "description": "date. From 2025-03-05 to 2026-10-01." }, { "name": "period_end", "in": "query", "schema": { "type": "string" }, "description": "date. From 2028-03-05 to 2032-01-22." }, { "name": "status", "in": "query", "schema": { "type": "string" }, "description": "string. Values: Active.", "examples": [ "eq.Active" ] }, { "name": "licence_class", "in": "query", "schema": { "type": "string" }, "description": "string. Values: Civil, Civil;Mechanical, Civil;Structural, Electrical, Fire Safety, Mechanical, Mechanical;Electrical, Mechanical;Fire Safety, Mechanical;Fire Safety;Electrical, Structural, Structural;Mechanical.", "examples": [ "eq.Structural;Mechanical" ] }, { "name": "licence_condition", "in": "query", "schema": { "type": "string" }, "description": "string. Values: Able to work in the building and construction industry, Conditioned on to “only work in the building and construction industry on BCA class 2, 3 or 9C buildings, Not able to provide professional engineering services to or for the building and construction industry, Not able to provide professional engineering services to or for the building and construction industry in electrical engineering., Not able to work in building and construction industry., Not able to work in the Building and Construction Industry, Not able to work in the Building and Construction Industry., Not able to work in the building and construction industry, Not able to work in the building and construction industry., Only for work in the building and construction industry on BCA classes 2, 3 and 9c buildings, Only valid for the building and construction industry, Only valid for the building and construction industry on BCA classes 2, 3, 9c buildings, Only valid for work in the building and construction industry on BCA class 2, 3 or 9c buildings, Only valid for work relating to Information Technology & Telecommunications, Only work in the building and construction industry on BCA class 2 buildings, Only work in the building and construction industry on BCA class 2, 3 9c buildings, Only work in the building and construction industry on BCA class 2, 3 or 9C buildings, Only work in the building and construction industry on BCA class 2, 3 or 9C buildings., Valid for work performed as an employee only. Not able to contract, only work in the building and construction industry on BCA class 2, 3 or 9C buildings.", "examples": [ "eq.only work in the building and construction industry on BCA class 2, 3 or 9C buildings" ] }, { "name": "verification_status", "in": "query", "schema": { "type": "string" }, "description": "string. Values: Authorized.", "examples": [ "eq.Authorized" ] }, { "name": "order", "in": "query", "schema": { "type": "string" }, "description": "`field.asc` or `field.desc`, comma-separated. The publisher's row order when absent." }, { "name": "limit", "in": "query", "schema": { "type": "integer", "minimum": 1, "maximum": 10000, "default": 100 }, "description": "Rows per page, 1 to 10,000. 100 when absent." }, { "name": "offset", "in": "query", "schema": { "type": "integer", "minimum": 0, "default": 0 }, "description": "Rows to skip. The `next` URL in each answer sets it for you." }, { "name": "format", "in": "query", "schema": { "type": "string", "enum": [ "json", "ndjson", "csv" ], "default": "json" }, "description": "`json`, `ndjson` or `csv`. JSON carries the provenance header, and the others carry it in response headers." } ], "responses": { "200": { "description": "Rows with the version, licence and attribution. `next` is the URL of the following page, or null." }, "400": { "description": "The query names a field the dataset does not have, or a value of the wrong type." }, "404": { "description": "The dataset or version is not loaded for queries." }, "429": { "description": "More than 60 requests in 10 seconds from one address. Blocked for 10 seconds. Wait `Retry-After` seconds.", "headers": { "Retry-After": { "schema": { "type": "integer" }, "description": "Seconds until the block lifts." }, "RateLimit-Policy": { "schema": { "type": "string" }, "description": "The limit, as \"fair-use\";q=60;w=10." } }, "content": { "application/json": { "schema": { "type": "object", "properties": { "error": { "type": "string" }, "status": { "type": "integer", "const": 429 }, "limit": { "type": "integer" }, "window_seconds": { "type": "integer" }, "block_seconds": { "type": "integer" }, "docs": { "type": "string", "format": "uri" }, "files": { "type": "string" } } } } } } } } }, "/api/v1/datasets/{slug}/versions/{version}/aggregate": { "get": { "tags": [ "query" ], "summary": "Counts, sums, averages, minimums and maximums by group", "operationId": "aggregateVersion", "description": "Groups and totals of any dataset in one dated version. Filters work as they do on rows. Each filter is `field=operator.value` in the query string, and every filter must match. A number or date field compares as a number or date, and a text field compares as text. Values are case-sensitive except with `ilike`. Prefix `not.` to negate a filter, as `not.eq.value`. Operators: `eq.value`, `neq.value`, `gt.value`, `gte.value`, `lt.value`, `lte.value`, `like.*text*`, `ilike.*text*`, `in.(a,b,c)`, `is.null`.", "parameters": [ { "name": "slug", "in": "path", "required": true, "schema": { "type": "string", "enum": [ "act-engineers-register" ] }, "description": "The dataset's slug, as in its page URL `/d//`." }, { "name": "version", "in": "path", "required": true, "schema": { "type": "string", "format": "date" }, "description": "A dated version loaded for queries, from the versions path. Answers for a dated version never change." }, { "name": "group", "in": "query", "schema": { "type": "string" }, "description": "On `aggregate`, fields to group by, comma-separated." }, { "name": "metric", "in": "query", "schema": { "type": "string", "default": "count" }, "description": "On `aggregate`, `count`, `sum.field`, `avg.field`, `min.field` or `max.field`, comma-separated. `count` when absent." }, { "name": "identifier", "in": "query", "schema": { "type": "string" }, "description": "string." }, { "name": "name", "in": "query", "schema": { "type": "string" }, "description": "string." }, { "name": "period_start", "in": "query", "schema": { "type": "string" }, "description": "date. From 2025-03-05 to 2026-10-01." }, { "name": "period_end", "in": "query", "schema": { "type": "string" }, "description": "date. From 2028-03-05 to 2032-01-22." }, { "name": "status", "in": "query", "schema": { "type": "string" }, "description": "string. Values: Active.", "examples": [ "eq.Active" ] }, { "name": "licence_class", "in": "query", "schema": { "type": "string" }, "description": "string. Values: Civil, Civil;Mechanical, Civil;Structural, Electrical, Fire Safety, Mechanical, Mechanical;Electrical, Mechanical;Fire Safety, Mechanical;Fire Safety;Electrical, Structural, Structural;Mechanical.", "examples": [ "eq.Structural;Mechanical" ] }, { "name": "licence_condition", "in": "query", "schema": { "type": "string" }, "description": "string. Values: Able to work in the building and construction industry, Conditioned on to “only work in the building and construction industry on BCA class 2, 3 or 9C buildings, Not able to provide professional engineering services to or for the building and construction industry, Not able to provide professional engineering services to or for the building and construction industry in electrical engineering., Not able to work in building and construction industry., Not able to work in the Building and Construction Industry, Not able to work in the Building and Construction Industry., Not able to work in the building and construction industry, Not able to work in the building and construction industry., Only for work in the building and construction industry on BCA classes 2, 3 and 9c buildings, Only valid for the building and construction industry, Only valid for the building and construction industry on BCA classes 2, 3, 9c buildings, Only valid for work in the building and construction industry on BCA class 2, 3 or 9c buildings, Only valid for work relating to Information Technology & Telecommunications, Only work in the building and construction industry on BCA class 2 buildings, Only work in the building and construction industry on BCA class 2, 3 9c buildings, Only work in the building and construction industry on BCA class 2, 3 or 9C buildings, Only work in the building and construction industry on BCA class 2, 3 or 9C buildings., Valid for work performed as an employee only. Not able to contract, only work in the building and construction industry on BCA class 2, 3 or 9C buildings.", "examples": [ "eq.only work in the building and construction industry on BCA class 2, 3 or 9C buildings" ] }, { "name": "verification_status", "in": "query", "schema": { "type": "string" }, "description": "string. Values: Authorized.", "examples": [ "eq.Authorized" ] }, { "name": "order", "in": "query", "schema": { "type": "string" }, "description": "`field.asc` or `field.desc`, comma-separated. The publisher's row order when absent." }, { "name": "limit", "in": "query", "schema": { "type": "integer", "minimum": 1, "maximum": 10000, "default": 100 }, "description": "Rows per page, 1 to 10,000. 100 when absent." }, { "name": "offset", "in": "query", "schema": { "type": "integer", "minimum": 0, "default": 0 }, "description": "Rows to skip. The `next` URL in each answer sets it for you." }, { "name": "format", "in": "query", "schema": { "type": "string", "enum": [ "json", "ndjson", "csv" ], "default": "json" }, "description": "`json`, `ndjson` or `csv`. JSON carries the provenance header, and the others carry it in response headers." } ], "responses": { "200": { "description": "Rows with the version, licence and attribution. `next` is the URL of the following page, or null." }, "400": { "description": "The query names a field the dataset does not have, or a value of the wrong type." }, "404": { "description": "The dataset or version is not loaded for queries." }, "429": { "description": "More than 60 requests in 10 seconds from one address. Blocked for 10 seconds. Wait `Retry-After` seconds.", "headers": { "Retry-After": { "schema": { "type": "integer" }, "description": "Seconds until the block lifts." }, "RateLimit-Policy": { "schema": { "type": "string" }, "description": "The limit, as \"fair-use\";q=60;w=10." } }, "content": { "application/json": { "schema": { "type": "object", "properties": { "error": { "type": "string" }, "status": { "type": "integer", "const": 429 }, "limit": { "type": "integer" }, "window_seconds": { "type": "integer" }, "block_seconds": { "type": "integer" }, "docs": { "type": "string", "format": "uri" }, "files": { "type": "string" } } } } } } } } }, "/api/v1/datasets/{slug}/versions": { "get": { "tags": [ "query" ], "summary": "The versions loaded for queries, newest first, with the URLs to query each", "operationId": "queryVersions", "parameters": [ { "name": "slug", "in": "path", "required": true, "schema": { "type": "string", "enum": [ "act-engineers-register" ] }, "description": "The dataset's slug, as in its page URL `/d//`." } ], "responses": { "200": { "description": "Loaded versions with row counts and URLs." }, "404": { "description": "The dataset or version is not loaded for queries." }, "429": { "description": "More than 60 requests in 10 seconds from one address. Blocked for 10 seconds. Wait `Retry-After` seconds.", "headers": { "Retry-After": { "schema": { "type": "integer" }, "description": "Seconds until the block lifts." }, "RateLimit-Policy": { "schema": { "type": "string" }, "description": "The limit, as \"fair-use\";q=60;w=10." } }, "content": { "application/json": { "schema": { "type": "object", "properties": { "error": { "type": "string" }, "status": { "type": "integer", "const": 429 }, "limit": { "type": "integer" }, "window_seconds": { "type": "integer" }, "block_seconds": { "type": "integer" }, "docs": { "type": "string", "format": "uri" }, "files": { "type": "string" } } } } } } } } } } }