FaxService

FaxService implements the external IFaxService contract and is activated over the Fax route. This page documents every public operation the class exposes.

Field	Value
Service class	SAIF.Services.WCF.Services.FaxService
Declared contract	IFaxService — external (SAIF.Services.WCF.Contracts, arriving transitively via SAIF.Framework.Core) *
Route	Fax
Source	src/WCF/SAIF.Services.WCF.Host/Services/FaxService.cs
Service attributes	[AspNetCompatibilityRequirements(RequirementsMode = Allowed)], [LogErrorBehavior]
Instancing / concurrency	WCF defaults — not overridden in source
Binding	basicHttpBinding (default, unnamed — no <endpoint> is configured for any of the six routes)
Class-level authorization	None in code
Error handling	[LogErrorBehavior] installs ErrorLogErrorHandler; see Faults and error pipeline
Operations	1
Also hosted in	—

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SendFax

Stage a document and dispatch it to each fax recipient.

Field	Value
Operation name	SendFax
Contract name	SendFax — override, if any, not observable because IFaxService is declared in an external contracts assembly
SOAP action	Not observable — contract assembly is external
Implementing member	SAIF.Services.WCF.Services.FaxService.SendFax (src/WCF/SAIF.Services.WCF.Host/Services/FaxService.cs)
Pattern	Request/response (IsOneWay not observable — contract assembly is external)
Binding	basicHttpBinding (default, unnamed)
Authorization	None in code
Process	OP-014

Input message

Part	Type	Required	Default	Purpose
config	SAIF.Core.Services.Documents.FaxConfig	Yes	—	Fax request carrying the document bytes and the recipient collection.

Complex input types

Type	Kind	Members	Declared in
SAIF.Core.Services.Documents.FaxConfig	Data contract	Not enumerated — declared in an external contracts assembly **	SAIF.Services.WCF.Contracts / framework closure *

Output message

Field	Value
Return type	void
Meaning	A successful response indicates only that the operation completed without a fault.
Empty-result behavior	Not applicable.

Faults

Fault	Declared	Raised when	Surfaced as	Detail crosses the boundary
ArgumentNullException	Not declared	See OP-014 process detail	Generic SOAP fault produced by The operation itself, via Enforce	Yes
FaultException/CommunicationException/TimeoutException from Legacy.Fax	Not declared	See OP-014 process detail	Generic SOAP fault produced by The ErrorLogErrorHandler installed by [LogErrorBehavior]	Yes
Filesystem exception staging or removing the temp file	Not declared	See OP-014 process detail	Generic SOAP fault produced by The ErrorLogErrorHandler installed by [LogErrorBehavior]	Yes

Authorization

None in code. Access to SendFax rests entirely on the IIS authentication configured for the deployment variant; see Authentication and authorization.

Side effects

Aspect	Finding
Records written	None
Downstream calls	Legacy.Fax SOAP service (one call per recipient) — see Dependencies
Files or messages produced	Writes then deletes a temporary document file; dispatches one downstream SOAP call per recipient
Shared state touched	None
Repeat-call behavior	Each call restages and redispatches the fax; not idempotent, and a duplicate call resends to every recipient

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Coverage checklist

Public member	Documented section	Pattern
void SendFax(SAIF.Core.Services.Documents.FaxConfig config)	SendFax	Request/response

Related documentation

• Index
• Overview
• Architecture
• Activation and hosting
• Operations
• Faults and error pipeline
• Authentication and authorization
• Dependencies
• Configuration
• Operations and processes
• Business rules
• Data model
• Operational runbook
• Tech debt

Note: Statements marked with * were inferred from code structure, naming conventions, or contextual evidence where direct confirmation was not available in source artifacts. Statements marked with ** could not be confirmed; treat as unknown until verified.

Sources

• src/WCF/SAIF.Services.WCF.Host/Services/FaxService.cs