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plaid-OpenAPI

Plaid uses the OpenAPI 3.0.0 specification to schematize our docs and to generate our supported client libraries. This provides for a consistent typing experience across our external interfaces. Below we have listed some examples and issues we have found when iterating on the specification.

Using the OpenAPI generator

You can find examples on the official OpenApiGenerator docs.

Generating Plaid supported client libraries

The following are approximate commands that we use to generate our 5 client libraries:

plaid-node

OpenAPI Generator version: 5.1.1

openapi-generator-cli generate -g typescript-axios  \
-i 2020-09-14.yml \
-o build/generated-node \
-p npmName=plaid,supportsES6=true,modelPropertyNaming=original \
-t local/templates/typescript-axios

plaid-python

OpenAPI Generator version: 6.1

openapi-generator-cli generate -g python \
-i 2020-09-14.yml \
-o build/generated-python \
-p packageName=plaid \
--global-property apiTests=false,modelTests=false \
-t templates/python

plaid-ruby

OpenAPI Generator version: 6.3

openapi-generator-cli generate -g ruby  \
-i 2020-09-14.yml \
-o build/generated-ruby \
--global-property=apiTests=false,modelTests=false,useAutoload=true  \
--library=faraday \
-p gemName=plaid,gemRequiredRubyVersion=">= 3.0.0" \
-t local/templates/ruby

plaid-java

OpenAPI Generator version: 5.1.1

openapi-generator-cli generate -g java \
-i 2020-09-14.yml \
-o build/generated-java \
--library=retrofit2 \
--global-property apiDocs=false,modelDocs=false,apiTests=false,modelTests=false \
-p artifactId=plaid,apiPackage=com.plaid.client.request,modelPackage=com.plaid.client.model,dateLibrary=java8 \
-t templates/java \
--type-mappings=BigDecimal=Double

plaid-go

OpenAPI Generator version: 5.2

openapi-generator-cli -g go \
-i 2020-09-14.yml \
-o build/plaid-go \
--global-property=apiTests=false,modelTests=false,apiDocs=false,modelDocs=false \
-t templates/go \
-p packageName=plaid,enumClassPrefix=true,

All template edits can be found on their corresponding in the /templates folder for the associated library.

Known issues with openapi-generator

The openapi-generator often uses different styles based on the language you are generating.

  • We found that we had to modify our mustache templates to get servers and securitySchemes working for some generators. If possible, try not to modify these templates as they cause breaking changes upon upgrading, but modifications might be necessary for cases like these.

  • Enums as used by Plaid are extensible; that is, the API may add new enum values at will. However, OpenAPI generator for some languages will enable enum validation by default. You must disable strict enum validation for responses in your generated libraries, or your users may experience crashes when encountering a newly-added enum value in a response.