[typescript-rxjs] Added support for servers

[BenICE]

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Description of the PR

• allows the typescript-rxjs client to retrieve all server URLs defined in the spec (based on Add "servers" support to generators #1361)
• based on the main typescript project

(if somebody could tell me, if typescript-rxjs is still a good idea to use or if the main typescript generator would be a better option (as it seems to use rxjs as well), I would highly appreciate it)

cc @TiFu (2017/07) @taxpon (2017/07) @sebastianhaas (2017/07) @kenisteward (2017/07) @Vrolijkx (2017/09) @macjohnny (2018/01) @topce (2018/10) @akehir (2019/07) @petejohansonxo (2019/11) @amakhrov (2020/02)

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[BenICE]

Will resolve the last problem, if PR is deemed okay -> it seems just the line endings are wrong (but if I run the bin/utils/ensure-up-to-date script I get several 100 files, but not the 4 files that are marked by the circleci: build). Probably because I run under windows in git bash.

[macjohnny]

Looks good, it would be nice if you could also port this to the new typescript experimental generator

[macjohnny]

better only export the servers variable

Suggested change

	export const server{{-index}} = new ServerConfiguration<{ {{#variables}} "{{name}}": {{#enumValues}}"{{.}}"{{^-last}} | {{/-last}}{{/enumValues}}{{^enumValues}}string{{/enumValues}}{{^-last}},{{/-last}} {{/variables}} }>("{{url}}", { {{#variables}} "{{name}}": "{{defaultValue}}" {{^-last}},{{/-last}}{{/variables}} }, "{{description}}")
	const server{{-index}} = new ServerConfiguration<{ {{#variables}} "{{name}}": {{#enumValues}}"{{.}}"{{^-last}} | {{/-last}}{{/enumValues}}{{^enumValues}}string{{/enumValues}}{{^-last}},{{/-last}} {{/variables}} }>("{{url}}", { {{#variables}} "{{name}}": "{{defaultValue}}" {{^-last}},{{/-last}}{{/variables}} }, "{{description}}")

and add server to the reserved keywords in

openapi-generator/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/TypeScriptRxjsClientCodegen.java

Lines 331 to 347 in 240c046

	private void addExtraReservedWords() {
	this.reservedWords.add("BASE_PATH");
	this.reservedWords.add("BaseAPI");
	this.reservedWords.add("COLLECTION_FORMATS");
	this.reservedWords.add("ConfigurationParameters");
	this.reservedWords.add("Configuration");
	this.reservedWords.add("HttpMethod");
	this.reservedWords.add("HttpHeaders");
	this.reservedWords.add("HttpQuery");
	this.reservedWords.add("HttpBody");
	this.reservedWords.add("RequestArgs");
	this.reservedWords.add("RequestOpts");
	this.reservedWords.add("ResponseArgs");
	this.reservedWords.add("Middleware");
	this.reservedWords.add("AjaxRequest");
	this.reservedWords.add("AjaxResponse");
	}

to avoid naming conflicts with existing parameters

[BenICE]

Is the experimental typescript generator -> this one here: https://github.com/OpenAPITools/openapi-generator/blob/master/modules/openapi-generator/src/main/resources/typescript/http/servers.mustache

If so, it already has this feature, but slightly adjusted to their use case.

(Other comment will be done.)

[BenICE]

• Line endings fixed
• Only servers array exposed
• servers as resevered word added

Anything else?

(PS: If you have time, can you give me an idea if this generator will "die" and to be exchanged by the expermential one? Or point me to some infos about the idea of the experimental one)

[macjohnny]

LGTM